| 摘要 |
The disclosure relates to a tube coupling (10) comprising a coupling body having an open ended (12) throughway (11) to receive a tube (13), an annular shoulder (14) in the throughway facing the open end of the throughway, an 'O' ring seal (18) for sealing with a tube located against the annular shoulder in the throughway and a collet (25) located in the open end of the throughway for locking a tube in the throughway. The collet has a head (26) projecting out of the open end of the throughway and resilient arms (27) extend into the throughway to engage a tapered cam surface (29) adjacent said open end to force the arms inwardly with movement of the collet outwardly of the throughway into gripping engagement with a tube. A ring (19) is disposed in the throughway between the collet and 'O' ring seal, one side of the ring adjacent the collet having a ramp (19a) around its inner periphery to engage the ends of the collet arms when the collet is depressed into the throughway to release the arms from the tube and thereby allow release of a tube from the coupling body and the other side of the ring having a ramp (19b) around its inner periphery to engage the O ring seal (18) to hold the seal in alignment in the throughway when the collet is depressed into the throughway. |
